1.	The set of all first coordinates, or x-coordinates, from the ordered pairs in a relation is called the_______.
		A.	ordered coordinates	B.	range
		C.	domain	D.	related coordinates
		Hint
	2.	The domain and range of the relation shown in the graph are______.
		A.	domain: {2, 1, 0, -1}; range: {-3, -1, 0, 2}	B.	domain: {-3, -1, 0, 2}; range: {-1, 0, 1, 2}
		C.	domain: {-1, 0, 1, 2}; range: {-3, -1, 0, 2}	D.	domain: {3, 1, 0, -2}; range: {-2, -1, 0, 1}
		Hint
	3.	Examine the graph below. Which statement is not true?
		A.	The number of sport utility vehicles sold in the U.S. has increased every year since 1988.
		B.	The greatest number of sport utility vehicles sold was in 1998.
		C.	Sales of sport utility vehicles were about the same from 1988 through 1991.
		D.	In 1994, about 1,500,000 sport utility vehicles were sold in the U.S.
		Hint
	4.	Choose the tables that expresses {(-3, 4), (-1, -5), (0, 2), (2, 3), (3, -4)}.
		A.		B.
		C.		D.
		Hint
	5.	Refer to the graph. Determine the range.
		A.	{3.1, 3.2, 3.4, 3.6, 3.6, 3.7, 4.3, 4.5, 4.7, 4.8}
		B.	{2.1, 2.6, 2.7, 3.0, 3.0, 3.7, 4.3, 4.5, 5.4, 5.0}
		C.	{1984, 1985, 1986, 1987, 1988, 1990, 1993, 1995, 1997, 1999}
		D.	{1982, 1983,1984,1985, 1986, 1987, 1988,1989, 1990, 1991}
		Hint